Abstract
The morphologies of poly(styrene-ran-methacrylic acid) (SMAA) copolymers neutralized with Cu(II), including the local structure and composition of the ionic aggregates, were investigated as a function of acid content and level of neutralization. X-ray scattering and scanning transmission electron microscopy (STEM) results suggested that the sizes of the ionic aggregates in Cu(II)-neutralized SMAA are independent of the acid content and neutralization level. The number density of ionic aggregates increased slightly with acid content and neutralization level, but the increase was significantly less than expected for aggregates of fixed composition. Electron spin resonance (ESR) spectra of Cu(II) detected three distinct cation sites whose relative amounts changed with acid content. These results combined to indicate that the ionic aggregates contain non-ionic species and that the aggregate compositions become more ionic with increasing acid content and neutralization level.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
